Finding the Fourth Proportional to 281,303.74, 421,954.35 and 115,091.74
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Solution
The fourth proportional to 281,303.74, 421,954.35 and 115,091.74 is: 172,637.09
Step by Step Solution
- Step 1: Write the proportion equation
281,303.74 : 421,954.35 = 115,091.74 : x - Step 2: Convert to fraction form
281,303.74/421,954.35 = 115,091.74/x - Step 3: Cross multiply
281,303.74x = 421,954.35 × 115,091.74 - Step 4: Simplify right side
281,303.74x = 48,563,460,342.07 - Step 5: Solve for x
x = 48,563,460,342.07/281,303.74 - Step 6: Final answer
x = 172,637.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.